Organobismuth(III) and Dibismuthine Complexes Bearing N,N′-Disubstituted 1,8-Diaminonaphthalene Ligand: Synthesis, Structure, and Reactivity

The organobismuth­(III) and dibismuthine complexes bearing N,N′-disubstituted 1,8-diaminonaphthalene ligand were prepared. The reaction of LBiNMe2 (1) [L = 1,8-(NSiMe3)2C10H6] with ClSiMe3 results in the elimination of Me3SiNMe2, while PhCCH, Cp*H, and PhOH proceed via HNMe2 elimination and provide the complexes of LBiCl (2), LBiCCPh (3), LBiCp*­(4), and LBiOPh (5), respectively. Reaction of 1 with AlMe3 in n-hexane yields LBiMe (6). Compound 1 reacts with diisopropylcarbodiimide and phenyl isocyanate under insertion at the Bi–NMe2 bond to give the addition products LBi­(N-iPr)2CNMe2 (7) and LBiN­(Ph)­C­(O)­NMe2 (8). The reactions of 1 with sulfur and PhSiH3 result in the formation of LBi–S–BiL (9) and LBi–BiL (10), respectively. Compounds 2–10 were characterized by elemental analysis, 1H, 13C, and 29Si NMR spectroscopy, and X-ray crystallographic studies.